Air chuck



Patented June 5, 1928. v A 1 V UNITED STATES PATENT OFFICE.

HENRY ENGELBERT, OE BELOIT, KANSAS.

AIR CHUCK.

Application filed March 3,-1927. Serial No. 172,500.

This invention relates to chucks such as .25 having a head 26 which isset within the are applied on the end of air hose for the rubber gasket.This rivet extends clownpurpose of detachably connecting the air wardbelow the gasket and to the entrance hose with the air valve of apneumatic tire. of the bore 14 and in normal position has One of theobjects of this invention is to its inner end disposed just above thepin 19. provide an air chuck of a very simple con- Extending from thehead end of the rivet to struction and which is formedof standard apoint adjacent the inner end thereof, is a and easily procured parts soas to permit the slot 26 the purpose of which will presently air chuckto be readily repaired when deapp 1Q sired. Itwill be noted that whenthe Schrader A further object is to provide an air chuck valve isclosed, there is no pressure upon the of this kind wherein the valvewhich may rubber gasket whatsoever- This permits the be of any of thestandard forms, may be gasket to last indefinitely which it will notreadily removed or replaced. do if there is more or less constantpressure A still further object is to provide an air on it. chuck havingtherein a rubber gasket which In the use of this device, the opening ofmay be readily replaced when necessary and the chuck is applied over thetire valve stem which has no pressure on it when the chuck and thepressure of the stem depresses the is not in use so that it will lastindefinitely. rubber gasket carrying with it the split rivet 30 Myinvention is illustrated in the accom- 25 which in turn'depresses thevalve core panying drawings wherein pin 19, letting air pass through theslot 26 to Figure 1 is a vertical sectional view of an the tire. In casethe valve core should beair hose chuck constructed in accordancev comeleaky or otherwise inoperative, it is a with my invention; very slightmatter to replace the valve core,

Fig. 2 is a fragmentary section through it being only necessary'toremove the cap the gasket 2 1 and the rivet 25 at right angles andgasket and then unscrew the valve core to the section in Figure 1. fromthe outer interiorly screw-threaded end Referring to the drawings 10designates of the valve chamber 14. This may be done the body of thechuck, this body having an often under pressure. Attention is called to35 enlarged head 11 at one end formed with exthe fact that the cap 21may be readily unterior screw-threads 12. At the other end of screwed byhand without the use of a wrench the chuck there is an angular branch 13inand thus the valve or the gasket can be teriorly screw-threaded forengagement with readily replaced. The mechanism which I an air hoseconnection. A longitudinally exhave described is much less complicatedthan as tending valve-chamber 14: is formed within the ordinary airchuck and the chuck has the body communicating by a port 15 with beenfound to be extremely satisfactory in the interior of the branch 13.this valve practice. Inasmuch as it is made of standchamber being formedwith a seat 16 for a ard parts, it may be readily assembled or revalve.Disposed within this air chamber is paired when necessary. 40 anysuitable valve core, such as a Schrader I claim valve core. Inasmuch asthis valve is well 1. An air chuck for air hose comprising a known it isnot considered necessary to dechuck body having a. concave face at oneend scribe the valve structure other than to say and formed with alongitudinally extending that the spring 17 urges the valve 18 closedvalve chamber, an air valve therein having a 45 and that this valve isformed with a centralcentral stem extending to the concave face of lydisposed pin 19 extending upward the chuck body, an annular cap engagingthrough the chamber and projecting slightthat end of the chuck bodyhaving the conly beyond the slightly concave face 20 of the cave face,and an elastic gasket disposed bevalve body. tween the cap and the faceof the chuck body 50 Having screw-threaded engagement with and extendingacross the central opening of the head 11 is the annular cap 21 anddisthe cap, said gasket being annular, and a posed between the inwardlyextending flange rivet having a head inserted in the gasket.

22 of this cap and the seat 23 exterior to the the shank of the rivetextending beyond the cup-shaped depression 20, is the rubber gasgasketand the shank and head being slotted 5 ket 2 1 having a central opening.Within the shank being adapted when depressed td this opening isdisposed a hollow point rivet engage the stem to open the valve.

' shank, the head engaging the gasket and 2. An air'ohuqk col npri singa body having.

a screw-threaded branch at zine/ end and-haw ing a depression atitsother end, and-an annular seat exterior to the depmssion, the

engage a valve, a valve disposed Within said chamber and havlng falongitudinally extending stem projectingslightly beyond the fe'ce diffihe depression, an emulmweap 51 "mg 'sc'r ewthfieaded engagemerit withthe body and extending :ovei" :the j depression in sstidibody, ;anannular gasket engagi-Ifg-the sea't 0'11 the said depression 'a'ndengg-gea "by said cap, and a ri vetifdr-med "with 'a' "*1'ongitu'dinallyextending slotin' its head and said shank when the gasket is depressedfljene gaging said Valve "stem to open ithe 3. flntirgeheck'ierairhoseeqmpfisinga chuok'body having a eoneave iace'at one end fundformel wit' ha longitudindllyextending vahleehamber, an airIva-lvetherein havingf a. eentrel stemextending to the concave face of I thec'hiiek'bodyfah annulareap engaginggft-hat end of the chuck 'body havingthe con Q cave face, and an elastic gasket disposed be- 1.; tweenth'e'cscp an'd the face of the chuck-body andextendingacross the centralopeni goi {3- the eap, said asket bei ngfialifihflinlr, {and la tubularrivet havin a head -ihseited in gasket, the rivet extending beyondthegasket] and beifhg adapted; when fiepiess' l --w {en- -g ge the Ste-m teopen the v'a lveftheiiiveflbea (-3 :ing slqtt ec ll from the head enathereof "t6 fa. 1 poh ifti nwardly kif the inner face -='6f7t-he gasket;

" IH testimony whereof :Idhereunto efiig v I signature.

